Display, Scan Driving Apparatus for the Display, and Driving Method Thereof

1. A scan driving apparatus, comprising: a first driving apparatus connected to a plurality of scan lines; and a second driving apparatus connected to the plurality of scan lines, wherein, when one of the first driving apparatus and the second driving apparatus is in a scan enable state such that the plurality of scan lines are applied with a scan signal, the other of the first driving apparatus and the second driving apparatus is in a floating state such that an output terminal is floated, wherein at least one of the first driving apparatus and the second driving apparatus includes a plurality of scan driving blocks respectively connected to the plurality of scan lines; the plurality of scan driving blocks including: a first scan driving block for outputting a second clock signal to a first output terminal according to an input signal in synchronization with a first clock signal, and for outputting a first voltage to the first output terminal according to a third clock signal; a second scan driving block for outputting the third clock signal to a second output terminal in synchronization with a second clock signal according to the second clock signal output by the first scan driving block, and for outputting the first voltage to the second output terminal according to the first clock signal; and a third scan driving block for outputting the first clock signal to a third output terminal synchronization with the third clock signal according to the third clock signal output by the second scan driving block, and for outputting the first voltage to the third output terminal according to the second clock signal; wherein the first, second and third output terminals are floated from the first, second and third scan driving blocks according to a floating signal.

2. The scan driving apparatus of claim 1 , wherein the first driving apparatus sequentially applies the plurality of scan signals to the plurality of scan lines.

3. The scan driving apparatus of claim 2 , wherein the second driving apparatus simultaneously applies the plurality of scan signals to the plurality of scan lines.

4. The scan driving apparatus of claim 1 , wherein the first driving apparatus sequentially applies the plurality of scan signals to the plurality of scan lines and the second driving apparatus applies a control signal to the plurality of scan lines after the output terminal of the first driving apparatus is floated.

5. The scan driving apparatus of claim 1 , wherein the first driving apparatus simultaneously applies the plurality of scan signals to the plurality of scan lines and the second driving apparatus applies a control signal to the plurality of scan lines after the output terminal of the first driving apparatus is floated.

6. A scan driving apparatus, comprising: a first scan driving block for outputting a second clock signal to a first output terminal according to an input signal in synchronization with a first clock signal, and for outputting a first voltage to the first output terminal according to a third clock signal; a second scan driving block for outputting the third clock signal to a second output terminal in synchronization with a second clock signal according to the second clock signal output signal of the first scan driving block, and for outputting the first voltage to the second output terminal according to the first clock signal; and a third scan driving block for outputting the first clock signal to a third output terminal in synchronization with the third clock signal according to the third clock signal output by the second scan driving block, and for outputting the first voltage to the third output terminal according to the second clock signal; wherein the first, second and third output terminals are floated from the first, second and third scan driving blocks according to a floating signal.

7. The scan driving apparatus of claim 6 , wherein the second clock signal is a signal by which the first clock signal is shifted by a duty of the first clock signal, and the third clock signal is a signal by which the second clock signal is shifted by a duty of the second clock signal.

8. The scan driving apparatus of claim 7 , wherein the first scan driving block includes: a first transistor turned on by the second voltage transmitted according to the third clock signal and transmitting the first voltage to the first output terminal; a second transistor turned on by the input signal transmitted according to the first clock signal and transmitting the second clock signal to the first output terminal; a third transistor for transmitting the first voltage to a gate electrode of the first transistor according to the floating signal so as to turn off the first transistor; and a fourth transistor for transmitting the first voltage to a gate electrode of the second transistor according to the floating signal so as to turn off the second transistor.

9. The scan driving apparatus of claim 7 , wherein the second scan driving block includes: a first transistor turned on by the second voltage transmitted according to the first clock signal and transmitting the first voltage to the second output terminal; a second transistor turned on by the output signal of the first scan driving block transmitted according to the second clock signal and transmitting the third clock signal to the second output terminal; a third transistor for transmitting the first voltage to a gate electrode of the first transistor according to the floating signal so as to turn off the first transistor; and a fourth transistor for transmitting the first voltage to a gate electrode of the second transistor according to the floating signal so as to turn off the second transistor.

10. The scan driving apparatus of claim 7 , wherein the third scan driving block includes: a first transistor turned on by the second voltage transmitted according to the second clock signal and transmitting the first voltage to the third output terminal; a second transistor turned on by an output signal of the second scan driving block transmitted according to the third clock signal and transmitting the first clock signal to the third output terminal; a third transistor for transmitting the first voltage to a gate electrode of the first transistor according to the floating signal so as to turn off the first transistor; and a fourth transistor for transmitting the first voltage to a gate electrode of the second transistor according to the floating signal so as to turn off the second transistor.

11. A scan driving apparatus, comprising: a plurality of scan driving blocks respectively connected to a plurality of scan lines, the plurality of scan driving blocks including: a first scan driving block for outputting a second clock signal to a first output terminal according to an input signal in synchronization with a first clock signal, and for outputting a first voltage to the first output terminal according to a third clock signal; a second scan driving block for outputting the third clock signal to a second output terminal in synchronization with a second clock signal according to the second clock signal output by the first scan driving block, and for outputting the first voltage to the second output terminal according to the first clock signal; and a third scan driving block for outputting the first clock signal to a third output terminal in synchronization with the third clock signal according to the third clock signal output by the second scan driving block, and for outputting the first voltage to the third output terminal according to the second clock signal; wherein the first, second and third output terminals are connected to a corresponding scan line, and each of the plurality of scan driving blocks includes a first transistor for transmitting a voltage of a logic high level to the corresponding output terminal and a second transistor for transmitting a voltage of a logic low level to the corresponding output terminal, and a voltage for turning off the first transistor and the second transistor is transmitted to a gate electrode of the first transistor and a gate electrode of the second transistor according to a floating signal floating the corresponding output terminal.

12. The scan driving apparatus of claim 11 , wherein each scan driving block further includes: a floating signal input terminal for receiving a floating signal as an input; a third transistor for transmitting a voltage for turning off the first transistor to the gate electrode of the first transistor according to the floating signal; and a fourth transistor for transmitting a voltage for turning off the second transistor to the gate electrode of the second transistor according to the floating signal.

13. The scan driving apparatus of claim 12 , wherein the first transistor is a p-channel field effect transistor.

14. The scan driving apparatus of claim 13 , wherein the third transistor includes: a gate electrode connected to the floating signal input terminal; one terminal connected to a power source having the voltage of the logic high level; and another terminal connected to the gate electrode of the first transistor.

15. The scan driving apparatus of claim 12 , wherein the second transistor is a p-channel field effect transistor.

16. The scan driving apparatus of claim 15 , wherein the fourth transistor includes: a gate electrode connected to the floating signal input terminal; one terminal connected to a power source having the voltage of the logic high level; and another terminal connected to the gate electrode of the second transistor.

17. The scan driving apparatus of claim 11 , wherein the plurality of scan driving blocks further include a sequential input terminal for receiving one of a scan start signal and the output signal of an adjacent scan driving block as an input.

18. The scan driving apparatus of claim 17 , wherein the plurality of scan driving blocks further include: a fifth transistor turned on by a first scan clock signal and transmitting a voltage for turning on the first transistor to the gate electrode of the first transistor; a sixth transistor turned on by a second scan clock signal and transmitting a signal inputted to the sequential input terminal to the gate electrode of the second transistor; and a seventh transistor turned on by the signal inputted to the sequential input terminal and transmitting a voltage for turning off the first transistor to the gate electrode of the first transistor.

19. The scan driving apparatus of claim 18 , wherein the plurality of scan driving blocks sequentially output scan signals to a plurality of scan lines according to the signal inputted to the sequential inputted terminal.

20. The scan driving apparatus of claim 11 , wherein the plurality of scan driving blocks further include: a fifth transistor turned on by a first control signal and transmitting a voltage for turning off the first transistor to the gate electrode of the first transistor; a sixth transistor turned on by the first control signal and transmitting a voltage for turning on the second transistor to the gate electrode of the second transistor; a seventh transistor turned on by a second control signal and transmitting a voltage for turning off the second transistor to the gate electrode of the second transistor; and an eighth transistor turned on by the second control signal and transmitting a voltage for turning on the first transistor to the gate electrode of the first transistor.

21. The scan driving apparatus of claim 20 , wherein the plurality of scan driving blocks simultaneously apply scan signals to a plurality of scan lines according to the first control signal and the second control signal.

22. The scan driving apparatus of claim 20 , further comprising a ninth transistor turned on by the voltage for turning on the second transistor and transmitting the voltage for turning off the first transistor to the gate electrode of the first transistor.

23. The scan driving apparatus of claim 20 , further comprising a tenth transistor turned on by the voltage for turning on the first transistor and transmitting the voltage for turning off the second transistor to the gate electrode of the second transistor.

24. A display device, comprising: a display unit including a plurality of pixels; a data driver for applying a data signal to a plurality of data lines connected to the plurality of pixels; and a scan driver for applying a scan signal to a plurality of scan lines connected to the plurality of pixels for the data signal to be applied to the plurality of pixels; wherein the scan driver includes a first driving apparatus connected to the plurality of scan lines and a second driving apparatus connected to the plurality of scan lines, and when one of the first driving apparatus and the second driving apparatus is in a scan enable state such that the plurality of scan lines are applied with a scan signal, the other of the first driving apparatus and the second driving apparatus is in a floating state such that the output terminal is floated, at least one of the first driving apparatus and the second driving apparatus includes as plurality of scan driving blocks respectively connected to the plurality of scan lines; the plurality of scan driving blocks including: a first scan driving block for outputting a second clock signal to a first output terminal according to an input signal in synchronization with a first clock signal, and for outputting a first voltage to the first output terminal according to a third clock signal; a second scan driving block for outputting the third clock signal to a second output terminal in synchronization with a second clock signal according to the second clock signal output by the first scan driving block, and for outputting the first voltage to the second output terminal according to the first clock signal; and a third scan driving block for outputting the first clock signal to a third output terminal in synchronization with the third clock signal according to the third clock signal output by the second scan driving block, and for outputting the first voltage to the third output terminal according to the second clock signal; wherein the first, second and third output terminals are floated from the first, second and third scan driving blocks according to a floating signal.

25. The display device of claim 24 , wherein the first driving apparatus sequentially applies a plurality of scan signals to the plurality of scan lines.

26. The display device of claim 25 , wherein the second driving apparatus simultaneously applies the plurality of scan signals to the plurality of scan lines.

27. The display device of claim 25 , wherein the first driving apparatus sequentially applies the plurality of scan signals to the plurality of scan lines and the second driving apparatus applies a control signal to the plurality of scan lines after the output terminal of the first driving apparatus is floated.

28. The display device of claim 24 , wherein the first driving apparatus simultaneously applies the plurality of scan signals to the plurality of scan lines and the second driving apparatus applies a control signal to the plurality of scan lines after the output terminal of the first driving apparatus is floated.